Voice Control

Voice control is becoming increasingly popular with both manufacturers and consumers. NXP has developed a range of solutions for adding voice control directly into any product. From flexible implementations to completely turnkey solutions, NXP offers scalable options from high performance microprocessors to cost-effective microcontrollers.

Typical Far Field Voice Input System

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Microphone

Low-cost MEMS Microphone Array (one or more).

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Audio Processing

Digital signal processing to enhance wake word and commands recognition, locally and in cloud.

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Wake Word Engine

Machine Learning inference model to recognize the required wake word.

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Cloud Processing

Natural language commands are interpreted and understood, then produce an appropriate response.

Audio Processing Features

  • Audio streamer sends a few seconds of audio to the cloud for processing
  • Barge-in allows microphones to hear voice commands while music is played back
  • Beamforming combines multiple microphone signals to improve the quality of voice recognition
  • Direction of arrival determines direction that the voice is coming from, used in conjuction with beamforming
  • Echo canceller removes echo from the audio to improve voice recognition
  • Noise reduction removes background noise to further improve voice recognition
  • Playback processing optimizes loudspeakers for best possible sound

Why NXP for voice control?

Scalable and flexible MCU/MPU options

Scalable and flexible MCU/MPU options

Cost-efficient

Cost-efficient

Pre-certified and tested: production grade

Pre-certified and tested: production grade

Turnkey MCU solution for fastest time to market

Turnkey MCU solution for fastest time to market

Support for cloud-based ecosytems and local commands

Support for cloud-based voice assistants via integrated software DSP

Expandable feature capabilities

Expandable feature capabilities

NXP Voice Control Solutions

NXP offers certified and production-grade options for customers who wish to enable voice control into their products within popular cloud-based voice assistants or local commands.

Choose a voice control option

Voice Control Market Applications

Smart Home

  • Home security
  • Home monitoring
  • Home automation
  • Locks / Home access control
  • Lighting / Lighting controls
  • Fans
  • Thermostat
  • Smoke detector
  • Window shades, blinds, shutters
  • Garage door opener
  • Irrigation controller
  • Set top box / Media streamer
  • Smart TV
  • Faucet / Shower head
  • Speakers

Smart Appliances

  • Washing machine
  • Refrigerator
  • Oven, range, cooktop
  • Microwave
  • Coffee maker
  • Dish washer
  • HVAC
  • Dehumidifier
  • Vacuum
  • Multicooker

Smart Retail

  • Point of sale machines
  • Inventory management
  • Lighting automation
  • Security monitoring
  • Electronic shelf labels (ESLs)
  • Beacons
  • Kiosks / Vending machines
  • Unmanned store
  • Lock / Access control

Smart Industry

  • Factory automation
  • Safety monitoring
  • Object detection
  • Factory access control
  • Process monitoring
  • Machine monitoring
  • Manufacturing test
  • Pipeline distribution monitoring